Dab tsi yog qhov tseem ceeb ntawm kev siv citric acid

Citric acid yog cov organic acid loj tshaj plaws, soluble hauv dej, thiab yog cov khoom noj khoom haus thiab khoom noj khoom haus ntxiv. Raws li nws cov ntsiab lus dej, nws tuaj yeem muab faib ua citric acid monohydrate thiab anhydrous citric acid. Vim nws lub cev muaj zog, tshuaj lom neeg thiab cov khoom siv derivative, nws yog cov organic acid uas tseem ceeb tshaj plaws hauv cov zaub mov, tshuaj, tshuaj txhua hnub thiab lwm yam lag luam. Yog li, dab tsi yog cov haujlwm tshwj xeeb thiab kev siv ntawm citric acid?

1. Cov nyhuv ntawm citric acid

Citric acid feem ntau yog siv los ua tus neeg sawv cev acidifying, hnyav, tsis muaj zog, antioxidant, deodorant, tsw enhancer, gelling agent, toner, thiab lwm yam. Tsis tas li ntawd, citric acid kuj tuaj yeem tiv thaiv kab mob, tiv thaiv xim, txhim kho tsw. thiab txhawb kev hloov pauv sucrose. Citric acid kuj muaj cov nyhuv chelate thiab tuaj yeem tshem tawm qee cov hlau tsis zoo. Citric acid tuaj yeem tiv thaiv oxidation los ntawm enzyme catalysis thiab hlau catalysis, yog li tiv thaiv tsis muaj xim thiab tsw hloov ntawm cov txiv hmab txiv ntoo ceev.

2.Siv citric acid

A. Rau kev lag luam zaub mov

Vim hais tias citric acid muaj ib tug me me thiab refreshing qaub saj, nyob rau hauv cov nqe lus ntawm cov khoom noj additives, nws yog tsuas yog siv nyob rau hauv carbonated dej qab zib, kua txiv hmab txiv ntoo dej qab zib, lactic acid haus thiab lwm yam dej qab zib thiab pickled khoom, thiab nws qhov kev thov txawv nrog rau lub caij ntuj sov hloov. Citric acid suav txog li 2/3 ntawm tag nrho kev noj cov kua qaub tsw qab. Ntxiv citric acid rau cov txiv hmab txiv ntoo hauv cov kaus poom tuaj yeem tswj tau lossis txhim kho qhov tsw ntawm cov txiv hmab txiv ntoo hauv tsev cia puav pheej, nce acidity ntawm qee cov txiv hmab txiv ntoo uas tsis muaj acidity (qis pH nqi), ua kom tsis muaj cua sov ntawm cov kab mob thiab inhibit lawv txoj kev loj hlob, thiab tiv thaiv cov kab mob nthuav dav thiab Kev puas tsuaj ntawm cov kaus poom txiv hmab txiv ntoo nrog tsawg acidity. Ntxiv citric acid rau hauv cov khoom qab zib li cov kua qaub yog ib qho yooj yim rau kev koom tes nrog txiv hmab txiv ntoo saj. Kev siv citric acid hauv gel zaub mov, jam thiab jelly tuaj yeem txo qhov tsis zoo ntawm pectin, kom cov hydrogen bond ntawm pectin molecules tuaj yeem khi rau gel. Thaum ua cov zaub hauv kaus poom, qee cov zaub qhia cov tshuaj tiv thaiv alkaline. Siv citric acid raws li pH regulator tsis tau tsuas yog ua lub luag hauj lwm nyob rau hauv seasoning, tab sis kuj tswj nws zoo. Citric acid muaj cov yam ntxwv ntawm chelation thiab pH kev tswj hwm, uas tuaj yeem ua rau muaj kev ua haujlwm ntawm cov tshuaj tua kab mob antioxidant, inhibit enzyme kev ua haujlwm, thiab txuas ntxiv lub neej txee ntawm cov khoom noj hauv kev ua cov khoom noj ceev ceev.

Citric acid monohydrate feem ntau yog siv los ua cov kua qaub tsw qab rau cov dej txias, kua txiv hmab txiv ntoo, jam, txiv hmab txiv ntoo qab zib thiab cov zaub mov hauv kaus poom, thiab kuj yog antioxidant rau cov roj noj. Nyob rau tib lub sijhawm, nws tuaj yeem txhim kho cov txiaj ntsig zoo ntawm cov zaub mov, txhim kho qab los noj mov thiab txhawb kev zom zaub mov thiab nqus calcium thiab phosphorus hauv lub cev.

Anhydrous citric acid yog siv dav hauv cov dej haus. Citric acid ntsev, xws li calcium citrate thiab hlau citrate, yog cov fortifiers uas yuav tsum tau ntxiv nrog calcium thiab hlau ions hauv qee cov khoom noj. Esters ntawm citric acid, xws li triethyl citrate, tuaj yeem siv los ua cov yas tsis muaj tshuaj lom, ua cov yas yas rau ntim khoom noj, thiab ua kua qaub thiab khaws cia hauv kev lag luam dej haus thiab zaub mov.

B. Rau kev kho dej kev lag luam

Citric acid tuaj yeem ua kom tsis muaj menyuam thiab tswj cov pH tus nqi ntawm cov dej hauv kev kho dej. Lub acidity ntawm citric acid tuaj yeem hloov pH tus nqi ntawm cov hlwb thiab cuam tshuam rau cov metabolism hauv cov kab mob. High concentration ntawm acidic hydrogen ions kuj tseem tuaj yeem hloov cov kev ua haujlwm lom neeg ntawm cov kab mob thiab ua kom puas hlwb ncaj qha.

C.Rau tshuaj reagent thiab ntxuav

Citric acid tuaj yeem siv los ua tshuaj lom neeg tshuaj reagent hauv kev siv thev naus laus zis, raws li kev sim reagent, chromatographic tsom xam reagent thiab biochemical reagent; Nws yog siv los ua tus neeg sawv cev thiab cov npog ntsej muag los npaj cov tshuaj tsis haum.

Siv citric acid los yog citrate ua cov tshuaj ntxuav tes tuaj yeem txhim kho kev ua haujlwm ntawm cov khoom siv ntxhua khaub ncaws, ua kom cov hlau ions sai sai, tiv thaiv cov pa phem los ntawm kev rov txuas rau cov ntaub, tswj cov alkalinity tsim nyog rau kev ntxuav, tawg thiab tshem tawm cov av thiab tshauv, thiab txhim kho kev ua haujlwm. ntawm surfactants.

Citric acid kuj tuaj yeem ua rau hauv formaldehyde-dawb anti-crease tiav tus neeg saib xyuas rau kev tiv thaiv crease xov ntawm cov paj rwb ntshiab.

D. Rau tshuaj pleev ib ce

Citric acid tuaj yeem tiv thaiv thiab tshem tawm cov tawv nqaij pigmentation. Citric acid yog ib hom txiv hmab txiv ntoo acid, uas feem ntau yog siv los ua kom rov ua dua tshiab ntawm cutin, thiab feem ntau yog siv hauv tshuaj pleev ib ce, tshuaj zawv plaub hau, tshuaj zawv plaub hau, tshuaj pleev ib ce, tshuaj pleev ib ce, tshuaj tiv thaiv kev laus, khoom siv pob txuv, thiab lwm yam. rau daim tawv nqaij melanin tev, pore thinning, blackhead dissolution, thiab lwm yam.

E. Rau kev tiv thaiv ib puag ncig

Tuam Tshoj yog nplua nuj nyob rau hauv thee peev txheej, uas yog ib feem ntawm lub zog. Txawm li cas los xij, tau muaj qhov tsis zoo ntawm cov tshuab flue gas desulfurization, ua rau muaj huab cua phem SO2. Tam sim no, txhua xyoo emissions ntawm SO2 nyob rau hauv Tuam Tshoj tau mus txog ze li ntawm 40 lab tons. Nws yog qhov ceev kom kawm txog kev siv tshuab desulfurization zoo. Vim nws tsis tshua muaj vapor siab, uas tsis yog-tshuaj lom, ruaj khov tshuaj thiab siab SO2 nqus tus nqi, citric acid-sodium citrate tsis yog tshuaj desulfurization absorbent nrog rau kev loj hlob tus nqi.

F. Rau tsiaj txhu additives

Ntxiv citric acid rau piglet pub tuaj yeem txo qis thaum ntxov, txhim kho kev siv cov khoom noj los ntawm 5 feem pua ​​​​~ 10 feem pua ​​​​, thiab nce litter loj. Ntxiv 1 feem pua ​​​​~ 2 feem pua ​​citric acid rau cov zaub mov ntawm cov npua loj hlob tuaj yeem nce txhua hnub, txo qhov piv ntawm cov khoom noj rau cov nqaij, txhim kho cov protein digestibility, txo cov tuab ntawm cov rog rov qab, thiab txhim kho cov nqaij zoo thiab cov yam ntxwv carcass.

G. Rau kom tsis muaj menyuam

Kev sib xyaw ua ke ntawm citric acid thiab 80 degree muaj txiaj ntsig zoo ntawm kev tua cov kab mob spores, thiab tuaj yeem tua cov kab mob kis kab mob hauv lub raj xa dej ntawm lub tshuab hemodialysis. Txiv qaub, uas nyiam lub koob npe nrov ntawm "tus huab tais ntawm cov zaub mov sab hnub poob", muaj cov kab mob bactericidal zoo thiab zoo rau kev noj qab haus huv. Ntxiv nrog rau cov tshuaj tsw qab ntawm txiv qaub, tib neeg ib txwm nyiam siv los ua cov tais txias. Nws tsis yog tsuas yog qab thiab refreshing, tab sis kuj tuaj yeem txhim kho qab los noj mov, xws li nrov heev "txiv qaub qaib taw" tsis ntev los no.

H. Rau tshuaj

Citric acid, tseem hu ua citric acid, yuav tsum muaj calcium ions nyob rau hauv tsim ntawm prothrombin activator thiab tom qab coagulation txheej txheem. Citrate ion thiab calcium ion tuaj yeem tsim cov txheej txheem soluble uas nyuaj rau kev sib cais, yog li txo cov concentration ntawm calcium ion hauv cov ntshav thiab tiv thaiv cov ntshav coagulation. Nws yog siv los ua anticoagulant nyob rau hauv vitro thaum muab ntshav los yog anticoagulation ntawm kuaj ntshav kuaj.

3. Ceev faj

A. Muaj kev phom sij

Kev phom sij rau kev noj qab haus huv: concentrated citric acid tov muaj irritation ntawm mucous daim nyias nyias. Hauv kev lag luam siv, kev sib cuag yuav ua rau eczema;

Kev phom sij tawg: citric acid yog flammable. Cov hmoov thiab cua tuaj yeem tsim cov khoom tawg, uas tuaj yeem ua rau tawg thiab tawg thaum qhib hluav taws, kub kub lossis tiv tauj nrog oxidant.

B. Cia tej yam kev mob

Citric acid monohydrate poob dej siv lead ua hauv huab cua qhuav lossis thaum cua sov txog li 40 degree, thiab deliquests me ntsis hauv cov huab cua ntub. Lub dilute citric acid aqueous tov tuaj yeem ferment thaum sawv ntsug. Yog li ntawd, cov khoom monohydrate los yog cov tshuaj anhydrous yuav tsum tau muab cia rau hauv cov thawv airtight hauv qhov chaw txias thiab qhuav.